Certificate has expired

Check id: tls.cert_expired · fix effort: medium

What it means

Your HTTPS certificate is past its end date. Every visitor is seeing a full-page security warning right now.

The technical detail

Leaf certificate notAfter is in the past. All major clients hard-fail.

How to fix it

  1. Renew/reissue the certificate now.
  2. Set up automated renewal (ACME/Let's Encrypt or your host's managed TLS) so this can't recur.

Does your domain have this problem?

Run a free scan, takes about ten seconds.